NLnet Labs Routinator Query Parameter /api/v1/origins denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in NLnet Labs Routinator. This vulnerability affects unknown code of the file /api/v1/origins of the component Query Parameter Handler. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2026-49234. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in NLnet Labs Routinator (affected version not known). It has been declared as problematic. This vulnerability affects some unknown functionality of the file /api/v1/origins of the component Query Parameter Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endpoint, Routinator crashes. This only affects users who allow API access from untrusted networks.

The advisory is shared for download at nlnetlabs.nl. This vulnerability was named CVE-2026-49234 since 05/28/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-35064). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/28/2026 CVE reserved
06/08/2026 +11 days Advisory disclosed
06/08/2026 +0 days VulDB entry created
06/08/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: nlnetlabs.nl
Status: Confirmed

CVE: CVE-2026-49234 (🔒)
GCVE (CVE): GCVE-0-2026-49234
GCVE (VulDB): GCVE-100-369196
EUVD: 🔒

Entryinfo

Created: 06/08/2026 16:54
Updated: 06/08/2026 19:43
Changes: 06/08/2026 16:54 (65), 06/08/2026 19:43 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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